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Harrison bears elongated, light-colored crystals in a darker matrix. Some of the crystals are about 0.4 inch (1 centimeter) in size. Figure A is a version of the image with a superimposed scale bar of 5 centimeters (about 2 inches).
reply to post by Ezappa
Are they really crystals?
Im sure we could farm these in the near future. This may help fund better space exploration research & development in some way.
Based on composition information gathered from an array of ChemCam laser shots on Harrison, the elongated crystals are likely feldspars, and the matrix is pyroxene-dominated. This mineral association is typical of basaltic igneous rocks. The texture provides compelling evidence for igneous rocks at Gale Crater, where Curiosity is on a traverse to reach the lower slopes of Mount Sharp near the center of the crater.
If you'd read your own article link, you'd see the color correction in the photo shown is to align it with what it would look like in Earth-like light to make it easier for the geologists to scrutinize. Ergo, if you brought the rocks back here, yeah, they'd probably be more similar to the color corrected one than the Mars light one. The difference is literally in the light.
originally posted by: jeep3r
[...] but perhaps this could have been one of those things that, out of a zillion of featureless rocks, one might have investigated a bit closer using MAHLI, not?! Oh well, apparently there's nothing to see here, so let's move on ...